the man now known as emeritus pope benedict ascended to retirement castle. amy kellogg has the story from rome. >> pope benedict 16 z departed the palace through the courtyard pass the swiss forward, all scripted and on time. driven to the helipad. then they followed the chopper where he blessed the faithful one last time. >> i am no longer the supreme pontiff of the catholic church. i am until 8:00 p.m., then no more. i am simply a pilgrim. who begins the last off of his pilgrimage on earth. >> earlier he said farewell to cardinal promising to show uncome reverence and obedience to the one among them who might be pope. there was a great weight lifted from his shoulder. >> you have seen him carefree is not the word but there is an ease there. happy he will be relieved of the duties. >> accolade for those who knew him. >> he was always the most courteous and sensitive of all the ones we visited. of course, the pope, i think, he has been most astonishing teacher. >> pope benedict parting words were good night. now pope emeritus, the former pontiff, says he pla